CN217583114U

CN217583114U - Oil pointer for speed reducer

Info

Publication number: CN217583114U
Application number: CN202221491715.8U
Authority: CN
Inventors: 刘喜龙; 张朋
Original assignee: Zhuzhou Gear Co Ltd
Current assignee: Zhuzhou Gear Co Ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-10-14
Anticipated expiration: 2032-06-15

Abstract

Oil pointer for speed reducer, including the oil pointer base member of plug screw shape, install the reflector panel and the transparent window of taking the scale mark in the oil pointer base member, its characterized in that: the oil pointer base member include with oil pointer mounting hole screw-thread fit's interior barrel and outer wall cross-section be hexagonal outer barrel, the coaxial integrated into one piece of interior barrel and outer barrel, the internal diameter of outer barrel is greater than the internal diameter of interior barrel, reflector panel and transparent window are adorned respectively in outer barrel, the outer end of transparent window with the oil pointer base member is sealed. The utility model discloses when reduction gear operational environment temperature variation made the oil level receive the temperature influence and undulant to be less than interior barrel inner wall or be higher than interior barrel inner wall, still can follow the transparent window and observe the oil level, solve current oil pointer receive the temperature influence oil level to appear when great height changes the oil level by the oil pointer inner wall support the technical problem who can't find out concrete position, guarantee in reduction gear operation operating mode oil pointer oil level whole visual, improve the practicality and the reliability of oil pointer.

Description

Oil pointer for speed reducer

Technical Field

The utility model relates to a speed reducer is with oil pointer for the observation of oil level in the speed reducer.

Background

In a speed reducer for wind power generation (particularly a yaw speed reducer), oil level observation basically passes through a conventional screw-in type circular oil pointer, and the oil pointer is influenced by an installation space and the size of the oil pointer, so that the actual oil level is difficult to accurately observe. Meanwhile, the working environment temperature of the wind power speed reducer is changed between-40 ℃ and 60 ℃, the lubricating oil is influenced by the temperature, the oil level is greatly changed, and the oil level is propped against the inner wall of the oil pointer and cannot be seen.

SUMMERY OF THE UTILITY MODEL

The utility model provides a speed reducer is with oil pointer, when reduction gear operational environment temperature variation made the oil level receive the temperature influence and undulant to being less than interior barrel inner wall or being higher than interior barrel inner wall, still can follow the oil level in the transparent window, solve current oil pointer and receive the temperature influence oil level when great height change appears the oil level by the oil pointer inner wall support the technical problem that can't find out concrete position, guarantee in reduction gear operation condition the whole visual of oil pointer oil level, improve the practicality and the reliability of oil pointer.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

oil pointer for speed reducer, including the oil pointer base member of plug screw shape, install the reflector panel and the transparent window of taking the scale mark in the oil pointer base member, its characterized in that: the oil pointer base member include with oil pointer mounting hole screw-thread fit's interior barrel and outer wall cross-section be hexagonal outer barrel, the coaxial integrated into one piece of interior barrel and outer barrel, the internal diameter of outer barrel is greater than the internal diameter of interior barrel, reflector panel and transparent window are adorned respectively in outer barrel, the outer end of transparent window with the oil pointer base member is sealed.

Preferably, the inner wall of the inner cylinder and the inner wall of the outer cylinder are transited through a transition surface, and the transition surface consists of a conical ring surface which is connected with the inner wall of the inner cylinder and gradually increases in diameter from inside to outside and a radial ring surface which is connected with the inner wall of the outer cylinder.

Preferably, the outer diameter of the inner cylinder is smaller than that of the outer cylinder, an annular step surface is formed between the inner cylinder and the outer cylinder, an annular groove is formed in the annular step surface, a sealing gasket is filled in the annular groove, and the sealing gasket is sleeved on the external thread of the inner cylinder.

Preferably, the annular step surface is positioned on the inner side of the inner end surface of the outer cylinder body.

Preferably, the center of the reflector is provided with a central through hole, the edge of the reflector is provided with semicircular through holes, the semicircular through holes are uniformly distributed at intervals along the circumferential direction of the reflector, and the semicircular through holes are positioned on the outer side of the inner wall of the inner cylinder.

Preferably, the transparent window is arranged on the inner side of the outer end face of the outer cylinder body.

The utility model has the advantages that:

1. the utility model discloses a oil pointer for speed reducer, the oil pointer base member includes integrated into one piece's interior barrel and outer barrel, interior barrel stretches into in the oil pointer mounting hole with oil pointer mounting hole screw-thread fit, the internal diameter of outer barrel is greater than the internal diameter of interior barrel, reflector panel and transparent window are adorned respectively in outer barrel, the lubricant flows into to outer barrel by interior barrel, can effectively observe the oil level height through transparent window, when reduction gear operational environment temperature changes make the oil level receive the temperature influence and undulant to be less than interior barrel inner wall or be higher than when interior barrel inner wall, still can follow the transparent window and observe the oil level, solve current oil pointer and receive the technical problem that the oil level supported unable concrete position of seeing out by the oil pointer inner wall when great height changes appear in the oil level, guarantee that the whole journey of oil pointer oil level is visual in reduction gear operation operating mode, the practicality and the reliability of oil pointer are improved.

2. Transition is carried out between the inner wall of the inner barrel and the inner wall of the outer barrel through a transition surface, the transition surface is composed of a conical ring surface and a radial ring surface, the diameter of the conical ring surface is gradually increased from inside to outside, oil liquid in the inner barrel can be guaranteed to fully and rapidly flow into the outer barrel, the oil level height of the inner barrel and the oil level height of the outer barrel are kept consistent, and the accuracy and the reliability of oil level observation are improved.

Drawings

Fig. 1 is a schematic view of a speed reducer oil pointer in an embodiment.

Fig. 2 is a schematic diagram of the base of the oil pointer.

Fig. 3 is a schematic view of a reflector.

Detailed Description

Embodiments of the present invention are described in detail below with reference to fig. 1~3.

Oil pointer for speed reducer, including the oil pointer base member 1 of plug screw shape, install 2 and the transparent window 3 of reflector panel and the transparent window of taking the scale mark in the oil pointer base member 1, its characterized in that: oil pointer base member 1 include with oil pointer mounting hole screw-thread fit's interior barrel 4 and outer wall cross-section be hexagonal outer barrel 5, interior barrel 4 and the coaxial integrated into one piece of outer barrel 4, the internal diameter D of outer barrel 5 is greater than the internal diameter D of interior barrel 4, reflector panel 2 and transparent window 3 adorn respectively in outer barrel 5, transparent window 1 is sealed with the outer end of oil pointer base member 1.

The oil pointer for the speed reducer comprises an inner barrel 4 and an outer barrel 5 which are integrally formed, wherein the inner barrel 4 and an oil pointer mounting hole are in threaded fit and extend into the oil pointer mounting hole, the inner diameter D of the outer barrel 5 is larger than the inner diameter D of the inner barrel 4, a reflector panel 2 and a transparent window 3 are respectively arranged in the outer barrel 5, lubricating oil flows into the outer barrel 5 from the inner barrel 4, the height of the oil level can be effectively observed through the transparent window 3, when the temperature of the working environment of the speed reducer changes, the oil level is affected by the temperature and fluctuates to be lower than the inner wall of the inner barrel 4 or higher than the inner wall of the inner barrel 4, the oil level can still be observed through the transparent window 3, the technical problem that the specific position cannot be seen due to the fact that the oil level is supported by the inner wall of the oil pointer when the oil level is affected by the temperature, the whole-course visualization of the oil pointer in the operating condition of the speed reducer is guaranteed, and the practicability and reliability of the oil pointer are improved.

The inner wall of the inner cylinder 4 and the inner wall of the outer cylinder 5 are transited through a transition surface 6, and the transition surface 6 consists of a conical ring surface 61 which is connected with the inner wall of the inner cylinder 4 and gradually increases in diameter from inside to outside and a radial ring surface 62 which is connected with the inner wall of the outer cylinder 5. The diameter of the conical ring surface 62 is gradually increased from inside to outside, so that oil in the inner cylinder 4 can fully and quickly flow into the outer cylinder 5, the oil level heights of the inner cylinder and the outer cylinder are kept consistent, and the accuracy and the reliability of oil level observation are improved.

The outer diameter of the inner cylinder 4 is smaller than that of the outer cylinder 5, an annular step surface 7 is formed between the inner cylinder 4 and the outer cylinder 5, an annular groove 71 is formed in the annular step surface 7, a sealing washer 8 is padded in the annular groove 71, and the sealing washer 8 is sleeved on the external thread of the inner cylinder 4. The inner cylinder 4 is screwed in the oil pointer mounting hole in a threaded fit manner, and the sealing washer 8 is pressed on the end face of the oil pointer mounting hole to form sealing, so that oil is prevented from leaking outside.

The annular step surface 7 is positioned on the inner side of the inner end surface of the outer cylinder 5. During installation, the outer barrel 5 is clamped through a wrench to screw the inner barrel 4 into the oil pointer mounting hole, the middle annular step surface 7 abuts against the end face of the oil pointer mounting hole after screwing, the annular groove 71 is tightly pressed on the end face of the oil pointer mounting hole, the end face in the outer barrel 5 is separated from the end face of the oil pointer mounting hole and is not in contact with the end face, the sealing state of the sealing washer 8 can be observed through a gap between the annular step surface 7 and the end face in the outer barrel 5, so that the sealing washer 8 can be replaced in time when the sealing washer 8 is damaged or fails, and the structural reliability of the oil pointer is higher.

The central through hole 21 is arranged at the center of the reflector 2, the semicircular through holes 22 are arranged at the edge of the reflector 2, the semicircular through holes 22 are evenly distributed along the circumferential direction of the reflector 2 at intervals, and the semicircular through holes 21 are positioned on the outer side of the inner wall of the inner cylinder 4. The central through hole 21 and the semicircular through hole 22 guide oil, the oil flows between the reflector 2 and the transparent window 3, the height of the oil level can be seen from the reflector 2 through the transparent window 3, and the specific height value of the oil level can be read through the scale marks of the reflector 2.

Wherein, transparent window 3 dress in the inboard of the outer terminal surface of outer barrel 5, form the protection to transparent window 3, reduce transparent window 3's striking and collision, increase of service life.

The technical solutions of the embodiments of the present invention are completely described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. Oil pointer for speed reducer, including the oil pointer base member of plug screw shape, installation takes the reflector panel and the transparent window of scale mark in the oil pointer base member, its characterized in that: the oil pointer base member include with oil pointer mounting hole screw-thread fit's interior barrel and outer wall cross-section be hexagonal outer barrel, the coaxial integrated into one piece of interior barrel and outer barrel, the internal diameter of outer barrel is greater than the internal diameter of interior barrel, reflector panel and transparent window are adorned respectively in outer barrel, the outer end of transparent window with the oil pointer base member is sealed.

2. The oil pointer for a speed reducer according to claim 1, characterized in that: the inner wall of the inner cylinder body and the inner wall of the outer cylinder body are in transition through a transition surface, and the transition surface is composed of a conical ring surface which is connected with the inner wall of the inner cylinder body and gradually increases in diameter from inside to outside and a radial ring surface which is connected with the inner wall of the outer cylinder body.

3. The oil pointer for a speed reducer according to claim 1, characterized in that: the outer diameter of the inner cylinder body is smaller than that of the outer cylinder body, an annular step surface is formed between the inner cylinder body and the outer cylinder body, an annular groove is formed in the annular step surface, a sealing washer is filled in the annular groove, and the sealing washer is sleeved on the external thread of the inner cylinder body.

4. The oil pointer for a speed reducer according to claim 3, characterized in that: the annular step surface is positioned on the inner side of the inner end surface of the outer cylinder body.

5. The oil pointer for a speed reducer according to claim 1, characterized in that: the center of the reflector is provided with a central through hole, the edge of the reflector is provided with semicircular through holes, the semicircular through holes are evenly distributed at intervals along the circumferential direction of the reflector, and the semicircular through holes are positioned on the outer side of the inner wall of the inner cylinder.

6. The oil pointer for a speed reducer according to claim 1, characterized in that: the transparent window is arranged on the inner side of the outer end face of the outer cylinder body.